Title:
OPTICAL MIXER AND A MULTI-WAVELENGTH HOMOGENEOUS LIGHT SOURCE USING THE SAME
Document Type and Number:
WIPO Patent Application WO/2017/135351
Kind Code:
A1
Abstract:
To provide an optical mixer capable of efficiently homogenizing light flux output from a plurality of light sources into a small size, and a multi-wavelength homogeneous light source using same. For example, a multi-wavelength homogeneous light source is provided with a multi-wavelength light source substrate equipped with a plurality of light sources for outputting light of different wavelengths, and an optical mixer for mixing light. The optical mixer has a columnar shape formed from a transparent material, the length of the side surfaces thereof being larger than the outermost diameter of the top surface or bottom surface thereof, and the inside of the optical mixer having a plurality of scattering particles having the function of scattering light. The optical mixer is configured such that the side surfaces of the optical mixer are provided with a function for reflecting light, the top surface and the bottom surface of the optical mixer are provided with a function for transmitting light, a function for reflecting light incident on the side surfaces from the top surface or the bottom surface, and a function for mixing light using the scattering function of the scattering particles. The multi-wavelength homogeneous light source is configured such that the surface of the multi-wavelength light source substrate on which the plurality of light sources are disposed is in close contact with the top surface or the bottom surface of the optical mixer.
Inventors:
KAWAMURA TOMOTO (JP)
NAKAMURA TOSHITERU (JP)
MURATA SEIJI (JP)
SEO YOSHIHO (JP)
KURODA TOSHIHIRO (JP)
KAWAKAMI YUTAKA (JP)
SAKAI DAICHI (JP)
TAKAIWA TOSHIYUKI (JP)
NAKAMURA TOSHITERU (JP)
MURATA SEIJI (JP)
SEO YOSHIHO (JP)
KURODA TOSHIHIRO (JP)
KAWAKAMI YUTAKA (JP)
SAKAI DAICHI (JP)
TAKAIWA TOSHIYUKI (JP)
Application Number:
PCT/JP2017/003718
Publication Date:
August 10, 2017
Filing Date:
February 02, 2017
Export Citation:
Assignee:
HITACHI CHEMICAL CO LTD (JP)
International Classes:
F21V8/00; F21S2/00; F21V19/00; G02B6/00; F21W101/10; F21Y105/10; F21Y113/10; F21Y115/10
Foreign References:
| JP2014063614A | 2014-04-10 | |||
| JP2007280793A | 2007-10-25 | |||
| JP2015204136A | 2015-11-16 |
Attorney, Agent or Firm:
SEIRYO I.P.C. (JP)
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